The constitutional amendment prohibit the creation of a standing military force but allow the temporary establishment of special police units to counter acts of "external aggression".
Students who are attending night classes must carry a permit or identification card, provided by the school or an official certified person.
Youths under 18 who are caught without them are subject to detention at a police station until they are released to their legal guardians.
Each person inside a vehicle must carry their identification cards or be accompanied by their legal guardians.
Authorities have helped slowly decrease the amount of unattended youths loitering around the streets.